SLP

A Modular Exhaust System to Wake Up Your 2005-2006 GTO! Bolt on a LoudMouth® Modular Catalyst-Back Exhaust System on your new 2005-2006 GTO for up to 5 extra horsepower and 5 foot-pounds of torque with the aggressive...

Looking for the ultimate GTO cat-back system? SLP's GTO Loud Mouth® Exhaust System employs an integral X-pipe crossover and specially designed "Shotgun" race resonators to provide superior flow and performance, while...